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Building OpenOCD for Windows

You can build OpenOCD for Windows natively with either MinGW-w64/MSYS
or Cygwin (plain MinGW might work with --disable-werror but is not
recommended as it doesn't provide enough C99 compatibility).
Alternatively, one can cross-compile it using MinGW-w64 on a *nix
host. See README for the generic instructions.

Native MinGW-w64/MSYS compilation

As MSYS doesn't come with pkg-config pre-installed, you need to add it
manually. The easiest way to do that is to download pkg-config-lite

Then simply unzip the archive to the root directory of your MinGW-w64

USB adapters

You usually need to have WinUSB.sys (or libusbK.sys) driver installed
for a USB-based adapter. Some vendor software (e.g. for ST-LINKv2)
does it on its own. For the other cases the easiest way to assign
WinUSB to a device is to use the latest Zadig installer:

For the old drivers that use libusb-0.1 API you might need to link
against libusb-win32 headers and install the corresponding driver with

If you need to use the same adapter with other applications that may
require another driver, a solution for Windows Vista and above is to
activate the IgnoreHWSerNum registry setting for the USB device.

That setting forces Windows to associate the driver per port instead of
per serial number, the same behaviour as when the device does not contain
a serial number. So different drivers can be installed for the adapter on
different ports and you just need to plug the adapter into the correct
port depending on which application to use.

For more information, see: